The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 2013
Filed:
Jun. 30, 2010
Akira Kajigaya, Atsugi, JP;
Tomoo Kawagoshi, Machida, JP;
Takahiro Imai, Tokyo, JP;
Takuya Iwasawa, Sagamihara, JP;
Daisuke Kawanishi, Isehara, JP;
Akira Kajigaya, Atsugi, JP;
Tomoo Kawagoshi, Machida, JP;
Takahiro Imai, Tokyo, JP;
Takuya Iwasawa, Sagamihara, JP;
Daisuke Kawanishi, Isehara, JP;
Jatco Ltd, Fuji-shi, JP;
Abstract
A belt-drive CVT includes a pair of pulleys, each of which has a stationary pulley and a movable pulley that moves toward or away from the stationary pulley in an axial direction of the pulley, a belt that is wound around the pair of pulleys and a rotation state detecting device for detecting rotation of the pulley. The rotation state detecting device has a tone wheel that rotates integrally with the pulley and a sensor that faces the tone wheel. The tone wheel has a cylinder portion that extends along a moving direction of the movable pulley. The cylinder portion is provided with a plurality of detection portions which are arranged at regular intervals in a circumferential direction throughout an entire circumference of the cylinder portion and which extend along the moving direction of the movable pulley.